Some tools are missing test-data

[Slugger70]

Various tools are missing their test-data.

e.g. hca_matrix_downloader

The xml file is present in the tool shed but there is no test data even though tests are specified in the tool itself.

[pcm32]

Hi! We normally write our tests for the cli packages that we write for each tool. Unfortunately we don't have enough resources to do testing both at the cli and the Galaxy tool. For instance, for scanpy we do here:

https://github.com/ebi-gene-expression-group/scanpy-scripts/blob/develop/scanpy-scripts-tests.bats

But, in the case that you mention, we don't even have tests here:

https://github.com/ebi-gene-expression-group/hca-matrix-downloader

Thanks for raising this up.